Internal Server Error in VB 4.0.8, please help!

[way2xtreme]

Thanks for everyone's help, I have finally located the vb error log (I was looking at the server error log before)

Apparently this error is causing the problem, how do I fix it? I can't get to the admincp even after I disable all the plugins in config.php

Call to undefined function prepare_blog_category_permissions() in /(path)/public_html/includes/blog_init.php on line 30

What to do here? Please help

[ProFifaLeagues]

That error i think shows you that a file is missing, Does admincp -- maintenance--- diagnostics --- suspect file version show that you have all your default vbulletin files installed without changes???
May be worth a quick reupload

[puertoblack2003]

this maybe a server issue i followed the link to this http://pool.bz/forum.php

[Lynne]

Try disabling your modifications/plugins and see if you still have this problem.
Note: To temporarily disable the plugin system, edit includes/config.php and add this line right under <?php

define('DISABLE_HOOKS', true);